Pi Day River Rotation - Marathon, Half Marathon and Pi Miler

It's not just a Half Marathon, it's a Half Marathon with Pie! Pi Miler -Pi to Pie

Trail run on a smooth, fast course with a few hills sprinkled in for fun. The Pi Miler, starting at 7:30 am, is 2 loops of different distances, totaling 3.14 miles (just over a 5K). The River Rotation Half Marathon, starting at 9 am, is a 13.14 mile three-loop course, alternating between counter clockwise and clockwise directions.

New for 2018, we are introducing the Pi Day River Rotation Full Marathon! Starting at 8:30am, runners will take a short lap, and 5 longer loops bringing you to 26.21 miles.

There will be a single aid station located at the trail head, and aid station at finish line. Runners in the marathon and half-marathon will pass the aid station at 5-mile intervals.

Water, Tail Wind, Honey Stingers, fruit, and other items will be available at the aid station. After the race, enjoy some homemade pie at the finish line!

The Pi-Miler will begin at 7:30am.

The 1/2 Marathon will begin at 9:00am.

The Marathon will begin at 8:30am. Cut off for all races is 6pm.

Having your Pi:

The Pi Slam is an option for registration. Runners of the Pi Slam will run the Pi Miler and the Pi Day River Rotation Half Marathon.

The Ultra Pi Slam is another option for registration. Runners of the Ultra Pi Slam will run the Pi Miler and the Pi Day River Rotation Full Marathon.

For those feeling like they have the time, there is also the Answer To Everything (aka 42). The runners of 42 will run the Pi Miler, Pi Day River Rotation Half Marathon, and the Pi Day River Rotation Full Marathon.

We are returning with chip timing.

This year all runners will receive special runner gloves at swag. Long sleeve black, unisex t-shirts will also go in the bags. All finishers will receive a finisher's award and car vinyl with distance.

Pi Day hoodies will be back

Join us on Facebook to get some motivation, Pi humor/facts, and updates on the race! https://www.facebook.com/PiDayRiverRotationHalfMarathonAndPiMiler

Download our Pi Day Runner's Guide

Race date:
March 10, 2018
Start time:
07:30 AM
Race distance:
3.14 / 13.14 /26.21
Cut off time:
9 hours

Event Information

Click here for a course map.


1st, 2nd, 3rd place male/female overall awarded for both races 1st place age groups. 1st place in Clydesdale and Athena -Clydesdale and Athena competitive divisions are based on weight minimums outlined in the USA Triathlon Competitive Rules. Athletes competing in the Clydesdale division must be a minimum of 220 pounds and athletes in the Athena division must be a minimum of 165 pounds


Lodging information can be found here.

Race Results